The correct answer is: Cashew.
Cashew is the officially recognized fruit of Goa. It is a tropical tree that is native to Brazil. The cashew fruit is a drupe, which is a type of fruit that has a single seed surrounded by a fleshy outer layer. The cashew nut is the seed of the cashew fruit. It is a kidney-shaped nut that is surrounded by a hard shell. The cashew nut is a popular snack food and is also used in many different dishes.
The cashew tree is an important part of the economy of Goa. The cashew nut is the main export of Goa and is a major source of income for many people in the state. The cashew tree is also an important part of the culture of Goa. The cashew tree is often used in religious ceremonies and is a symbol of good luck.
The other options are incorrect because they are not officially recognized fruits of Goa. Orange is a citrus fruit that is native to Asia. Coconut is a palm tree that is native to Southeast Asia. Mango is a tropical fruit that is native to India.